后台导入功能优化

@@ -37,142 +37,11 @@ class Study extends Backend
     }
 
 
-    /**
-     * 导入
+    /*
      *
-     * @return void
-     * @throws PDOException
-     * @throws BindParamException
      */
-    protected function import()
-    {
-        $file = $this->request->request('file');
-        if (!$file) {
-            $this->error(__('Parameter %s can not be empty', 'file'));
-        }
-        $filePath = ROOT_PATH . DS . 'public' . DS . $file;
-        if (!is_file($filePath)) {
-            $this->error(__('No results were found'));
-        }
-        //实例化reader
-        $ext = pathinfo($filePath, PATHINFO_EXTENSION);
-        if (!in_array($ext, ['csv', 'xls', 'xlsx'])) {
-            $this->error(__('Unknown data format'));
-        }
-        if ($ext === 'csv') {
-            $file = fopen($filePath, 'r');
-            $filePath = tempnam(sys_get_temp_dir(), 'import_csv');
-            $fp = fopen($filePath, 'w');
-            $n = 0;
-            while ($line = fgets($file)) {
-                $line = rtrim($line, "\n\r\0");
-                $encoding = mb_detect_encoding($line, ['utf-8', 'gbk', 'latin1', 'big5']);
-                if ($encoding !== 'utf-8') {
-                    $line = mb_convert_encoding($line, 'utf-8', $encoding);
-                }
-                if ($n == 0 || preg_match('/^".*"$/', $line)) {
-                    fwrite($fp, $line . "\n");
-                } else {
-                    fwrite($fp, '"' . str_replace(['"', ','], ['""', '","'], $line) . "\"\n");
-                }
-                $n++;
-            }
-            fclose($file) || fclose($fp);
-
-            $reader = new Csv();
-        } elseif ($ext === 'xls') {
-            $reader = new Xls();
-        } else {
-            $reader = new Xlsx();
-        }
-
-        //导入文件首行类型,默认是注释,如果需要使用字段名称请使用name
-        $importHeadType = isset($this->importHeadType) ? $this->importHeadType : 'comment';
-
-        $table = $this->model->getQuery()->getTable();
-        $database = \think\Config::get('database.database');
-        $fieldArr = [];
-        $list = db()->query("SELECT COLUMN_NAME,COLUMN_COMMENT FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = ? AND TABLE_SCHEMA = ?", [$table, $database]);
-        foreach ($list as $k => $v) {
-            if ($importHeadType == 'comment') {
-                $v['COLUMN_COMMENT'] = explode(':', $v['COLUMN_COMMENT'])[0]; //字段备注有:时截取
-                $fieldArr[$v['COLUMN_COMMENT']] = $v['COLUMN_NAME'];
-            } else {
-                $fieldArr[$v['COLUMN_NAME']] = $v['COLUMN_NAME'];
-            }
-        }
-
-        //加载文件
-        $insert = [];
-        try {
-            if (!$PHPExcel = $reader->load($filePath)) {
-                $this->error(__('Unknown data format'));
-            }
-            $currentSheet = $PHPExcel->getSheet(0);  //读取文件中的第一个工作表
-            $allColumn = $currentSheet->getHighestDataColumn(); //取得最大的列号
-            $allRow = $currentSheet->getHighestRow(); //取得一共有多少行
-            $maxColumnNumber = Coordinate::columnIndexFromString($allColumn);
-            $fields = [];
-            for ($currentRow = 1; $currentRow <= 1; $currentRow++) {
-                for ($currentColumn = 1; $currentColumn <= $maxColumnNumber; $currentColumn++) {
-                    $val = $currentSheet->getCellByColumnAndRow($currentColumn, $currentRow)->getValue();
-                    $fields[] = $val;
-                }
-            }
-
-            for ($currentRow = 2; $currentRow <= $allRow; $currentRow++) {
-                $values = [];
-                for ($currentColumn = 1; $currentColumn <= $maxColumnNumber; $currentColumn++) {
-                    $val = $currentSheet->getCellByColumnAndRow($currentColumn, $currentRow)->getValue();
-                    $values[] = is_null($val) ? '' : $val;
-                }
-                $row = [];
-                $temp = array_combine($fields, $values);
-                foreach ($temp as $k => $v) {
-                    if (isset($fieldArr[$k]) && $k !== '') {
-                        $row[$fieldArr[$k]] = $v;
-                    }
-                }
-                if ($row) {
-                    $insert[] = $row;
-                }
-            }
-        } catch (Exception $exception) {
-            $this->error($exception->getMessage());
-        }
-        if (!$insert) {
-            $this->error(__('No rows were updated'));
-        }
-
-        try {
-            //是否包含admin_id字段
-            $has_admin_id = false;
-            foreach ($fieldArr as $name => $key) {
-                if ($key == 'admin_id') {
-                    $has_admin_id = true;
-                    break;
-                }
-            }
-            if ($has_admin_id) {
-                $auth = Auth::instance();
-                foreach ($insert as &$val) {
-                    if (!isset($val['admin_id']) || empty($val['admin_id'])) {
-                        $val['admin_id'] = $auth->isLogin() ? $auth->id : 0;
-                    }
-                }
-            }
-            $this->model->saveAll($insert);
-        } catch (PDOException $exception) {
-            $msg = $exception->getMessage();
-            if (preg_match("/.+Integrity constraint violation: 1062 Duplicate entry '(.+)' for key '(.+)'/is", $msg, $matches)) {
-                $msg = "导入失败，包含【{$matches[1]}】的记录已存在";
-            };
-            $this->error($msg);
-        } catch (Exception $e) {
-            $this->error($e->getMessage());
-        }
-
-        $this->success();
+    public function import(){
+        return parent::import();
     }
 
     /**
@@ -272,7 +141,7 @@ class Study extends Backend
                         ->setCellValue('G' . $k, $val['earn_score']);
                 }
                 $excel->createSheet();
-                $title = "学生成绩" . date("YmdHis");
+                $title = "学生成绩" . date("Ymd");
                 header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
                 header('Content-Disposition: attachment;filename="' . $title . '.xlsx"');
                 header('Cache-Control: max-age=0');